The following is a list of patents granted to area inventors. The compilation is a recent one but is not necessarily complete.

D.C. Inventors

Christopher Lerner of the District and Brian S. Kressin of Silver Spring, no assignors. Toy ball with tail. Patent No. 4,657,253; 14 claims.

Neal Holtz, no assignor. Composite structure; 4 claims.

Philip Retz, no assignor. Eye chart. Patent No. 4,660,948; 20 claims.

Arthur N. Thorpe of the District, Frank E. Senftle of Chevy Chase and Corrinne C. Alexandria of the District, assignors to the United States of America, as represented by the secretary of the Interior. Method of oxidation of pyrite in coal to magnetite and low-field magnetic separation thereof. Patent No. 4,661,118; 23 claims.

William P. Mulokey of the District and Peter A. Weissopf of Fairfax, assignors to Magnavox Government and Industrial Electronics Co., Fort Wayne, Ind. Energy management control apparatus. Patent No. 4,661,914; 16 claims.

Maryland Inventors

Leila H. Jones of Sykesville, no assignor. Toy or object hanger for visual display. Patent No. 4,654,991; 15 claims.

Edward M. Grace of Hyattsville, et. al., assignors to Grace Building Systems Inc., Hyattsville. Preconstructed building structures and method of construction and assembly. Patent No. 4,655,024; 5 claims.

Reese Folb of Laytonsville, Md., and Shelton M. Gay Jr. of Vienna, assignors to the United States of America, as represented by the secretary of the Navy, Bethesda. High-speed faired towline. Patent No. 4,655,155; 15 claims.

Anthony J. Antonious of Towson, no assignor. Golf club head. Patent No. 4,655, 459; 4 claims.

David C. Winyard of Glen Burnie, assignor to the United States of America as represented by the secretary of the Navy, Bethesda. Compressor-scavenging educator system. Patent No. 4,655,698; 27 claims.

Mark R. Kercheval of Hanover and Lawrence W. Fickus of Baltimore, assignors to Environmental Elements Corp., Baltimore. Hopper gas distribution system. Patent No. 4,655,804; 19 claims.

Stanley J. Sarnoff of Bethesda, assignor to Survival Technology Inc., Bethesda. Absorption enhancing agents. Patent No. 4,656,034; 37 claims.

Francis T. Harris of Millersville, assignor to Ametek Inc., Odenton, Md. Fabrics made of hollow monofilaments. Patent No. 4,656,073; 11 claims.

Eugene McPherson of Forestville, Md., et. al., assignors to Georgetown University. Galactrose-C-6 nitrogen mustard compounds and their uses. Patent No. 4,656,159; 18 claims.

Ronald Ace of Lanham, no assignor. Method and apparatus for making patterns for eyeglasses. Patent No. 4,656,590; 23 claims.

Robert S. Ledley of Silver Spring, assignor to National Biomedical Research Foundation. Operator-interactive automated chromosome analysis system producing a karyotype. Patent No. 4,656,594; 14 claims.

Kent D. Murphy of Rockville, no assignor. Coin carrier. Design Patent No. D-289,217; term of patent 14 years.

Stephen P. Rosa of Bethesda, assignor to TVI Energy Corp., Beltsville. Multispectral target. Patent No. 4,659,089; 9 claims.

Douglas D. Bennett of Cambridge, et. al., assignors to Dentsply Research & Development Corp., Milford, Del. Multiple dosage syringe. Patent No. 4,659,327; 4 claims.

Theodore F. Comfort of Cumberland, assignor to Hercules Inc., Wilmington, Del. Cross-linked double base propellant having improved low temperature mechanical properties. Patent No. 4,659,402; 6 claims.

Pedro B. Macedo of Bethesda and Aaron Barkatt of Silver Spring, assignors to Pedro B. Macedo, Bethesda, and Theodore A. Litovitz, Annapolis. Fixation of amniotic materials with a complexing agent. Patent No. 4,569,477; 14 claims.

Pedro B. Macedo of Bethesda and Aaron Barkatt of Silver Spring, assignors to Pedro B. Macedo, Bethesda, and Theodore A. Litovitz, Annapolis. Fixation of dissolved metal species with a complexing agent. Patent No. 4,659,512; 26 claims.

Laurence R. McCarthy and H. Mark Perks, both of Baltimore, assignors to Becton, Dickinson and Co., Franklin Lakes, N.J. Lectin-coated latex agglutination assay for neisseria gonorrhoeae. Patent No. 4,659,658; 13 claims.

Robert E. Miller of Gaithersburg and Willis A. Reid Jr. of Bethesda, assignors to the United States of America, as represented by the secretary of the Army. Topical prophylaxis against schistosomal infections. Patent No. 4,659,738; 31 claims.

Rafael L. Bowen of Gaithersburg, assignor to American Dental Association Health Foundation. Simplified method for obtained strong adhesive bonding of composites to dentin, enamel and other substrates. Patent No. 4,659,751; 46 claims.

Dennis K. Karr of Sykesville, assignor to North American Philips Corp., New York. Miniature thermal switch elongated bimetellic element. Patent No. 4,660,016; 4 claims.

Gary R. Hoffman of Glen Arm, assignor of General Services Engineering Inc., Baltimore. Remote monitoring system. Patent No. 4,660,035; 4 claims.

Rudolph Talamantez of Silver Spring, no assignor. Apparatus for heating, storing and transferring heat. Patent No. 4,660,543; 8 claims.

Lloyd M. Thacker of Lutherville and Richard D. Stevenson of Severn, no assignors. Disc pad brake system. Patent No. 4,660,685; 17 claims.

Norman H. Wood of Berlin, et. al., assignors to Exxon Production Research Co. Method and apparatus for aligning underwater components. Patent No. 4,661,017; 4 claims.

Howard Martin of Silver Spring, no assignor. Four-sided root canal rasp for root canal preparation. Patent No. 4,661,061; 14 claims.

Robert E. Fischell of Silver Spring; Albert C. Sadilek of Elkridge, et. al., assignors to The Johns Hopkins University, Baltimore. Method for clearing a gas bubble from a positive displacement pump contained within a fluid dispensing system. Patent No. 4,661,097; 9 claims.

S. Mitchell Harmon of Ellicott City, assignor to Engineering Development Associates Ltd., Dayton. Multiple implant injector. Patent No. 4,661,103; 5 claims.

W. Carl Saxinger of Bethesda and Robert C. Gallo of Bethesda, no assignors. Competitive elisa for the detection of HTLV-III antibodies. Patent No. 4,661,445; 2 claims.

Stanley J. Sarenoff of Bethesda, assignor to Survival Technology Inc. Bethesda. T-PA composition capable of being absorbed into the blood stream and method of administration. Patent No. 4,661,469; 7 claims.

James L. Guthrie of Ashton, Helen F. Roberts of Sudersville, and Christian B. Lundsager of Ashton, assignors to W.R. Grace & Co., New York. Welding sealants for metals and method of use. Patent No. 4,661,675; 9 claims.

Christen Rauscher of Fort Washington, assignor to the United States of America as represented by the secretary of the Navy. Microwave recursive filter. Patent No. 4,661,789; 5 claims.

Bernard L. Lewis of Fort Washington, assignor to the United States of America as represented by the secretaty of the Navy. Doppler-tolerant binary phase-coded pulse compression system. Patent No. 4,661,819; 13 claims.

Bruce R. Baker of Cumberland, et. al., no assignors. Systems for method for producing synthetic plural word messages. Patent No. 4,661,916; 6 claims.

Charles H. Jones of Pasadena and John W. Kesner of Severna Park, assignors to Westinghouse. Roof paver element and system. Patent No. 4,655,018; 25 claims.

Virginia Inventors

Richard D. Jones of Springfield, assignor to UHR Corp., Alexandria. Heat exchange system with reserving receiver flow. Patent No. 4,655,051; 8 claims.

Ralph A. Soctr Jr. of Fairfax, no assignor. Chemical contamination monitor. Patent No. 4,655,235; 11 claims.

Dinesh M. Bhat of Richmond, assignor to James River Corp., Richmond. Solvent removal using a condensable heat transfer vapor. Patent No. 4,654,980. 28 Claims.

Henry J. Bond of Somerset, no assignor. Qooden circular stair with balustrade and method for fabricating the same. Patent No. 4,655,017. 5 Claims.

Jorge Pardo of Reston, assignor to National Concrete Masonry Association, Herndon. Roof paver element and system. Patent No. 4,655,018. 25 Claims.